下面有关水准测量注意事项的叙述中（）是错误的。 A.前后视线必须不等长，否则就产生视

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     Having visited museums and churches, visitors will be delighted to try these things which can be done

and seen in London. They are well worth visiting.

     London Eye

     Make a reservation (预订) for London Eye before you leave the United States. The Eye is a huge

wheel that takes you up into the sky. It was built to celebrate the millennium (千禧年), and has drawn

millions of tourists ever since. Fun for the entire family, the Eye is a great way to see all the spectacular

sites, including the River Thames, Parliament, Leicester Square, and Big Ben.

     Speaker's Corner

     Speaker's Corner never fails to draw a crowd. Near Marble Arch in Hyde Park, a group gathers every Sunday to speak their mind. You'll hear everything from political activists to religious zealots (狂热者), and all who live between these extremes. Go shopping on Oxford Street afterward, and walk over to Trafalgar Square to see where people have toured for ages.

     Kew Gardens

     If you garden, or appreciate beautiful surroundings, then you will be in heaven wandering the paths of

the Royal Botanic Kew Gardens, simply known as Kew Gardens. Featuring the world's largest collection of living plants, the collections in the greenhouses and beautiful displays of foliage throughout the garden

will take your breath away. Walk around on your own, or take a guide and learn about the garden's

secrets.

     Camden Town

     Camden Town is well known for its pop culture ways and extensive street markets. Home to many

punk (朋克摇滚乐) performers and artists, Camden Town also hosts amazing markets on the weekends, selling goods of all types including fashion, food, books and even some rather bizarre (极其怪诞的) items.

     Portobello Market

     Nestled in the middle of Notting Hill, Portobello Market is one of London's most popular spots. The

market actually has several distinct sections and they are dedicated to antiques, fruits and vegetables,

fashion, and secondhand "finds". Top off a visit to Portobello with a pub lunch, a couple of pints and some lively conversation with the locals.

1. Who is the text intended for?

A. American travelers.                              

B. French visitors.

C. The natives.                                        

D. Foreign tourists.

2. What do you know about London Eye?

A. It is not necessary to book a seat in advance.

B. It is designed mainly for visitors from abroad.

C. it was completed to welcome the new century.

D. It allows you to see all tourist attractions in London.

3. Speaker's Corner is famous for ________.

A. free admission                  

B. freedom of speech

C. its favorable location          

D. the number of speakers

4. One remarkable feature of Kew Gardens is that ________.

A. it is for the royal family only

B. it helps fight against greenhouse effect

C. its scenery is the most beautiful in Britain

D. it is home to the largest number of living plants.

5. If you want to pick up a used bargain, where should you go?

A. Oxford Street.                              

B. Portobello Market.

C. Camden Town.                              

D. Leicester Square

发生招标投标争议，民事主体可以首先提出行政复议，行政复议结果不满意的再向( )提出行政诉讼。

A．人民法院

B．仲裁机构

C．招标代理机构

D．公安机关

在下列各项中，无法计算出确切结果的是( )。

A．后付年金终值
B．即付年金终值
C．递延年金终值
D．永续年金终值

名著《水浒传》中，武松在快活林醉打了哪个恶霸？

焊接黄铜时，为了防止锌的蒸发，焊丝中含有（）元素。

A.Sn

B.AI

C.Si

D.Mn